Method of manufacturing a nourishment consisting mainly of glycoprotein



Patented May 33, @358 MEET-HOD F MANUFACTURIING A NQURKSIBI- MENT CQNSISTING MAINLY 0E1 GLYCO- 1 PRQTEHN Shiniiro Tanaiia, ami o-so,

Tokyo, Japan, as-

signor of one-half to Jirokichi Suzuki, Tokyo,

.ilapan No Drawing. Application March 30, 1937,

Serial No. 133,995 I 2 Elaims. This invention relates to a method of manufacturing a nourishment consisting mainly of from it by filtration, concentrating the juice by vaporization after the addition of sodium glycerophosphate and then neutralizing the same with tartaric acid. The object thereof is to. produce a nourishment economically which can stand. preservation and has great nutritive value. Glycoprotein which is a composite albuminous matter, although it is necessary for. the nourishment of the human body, has the defect of easily rotting or being hydrolyzed and accordingly being unable to stand preservation. According to the present invention, theDioscorea y'aponica ("Jinenjo, Iye-yamaimo", Tsukuneimo, etc.) crushed in a pasty form is diluted with a water solution of calcium chloride, magnesium chloride and calcium hydro-oxide and the solid-residue is removed therefrom by filtration. Next. sodium glycero-phosphate is added to the Juice as a stabilizing agent, and then after concentrated under reduced pressure the mixture is neutralized with tartaric acid. Thus, ,it-is possible to produce a nourishment free from the above defect. In this invention, sodium glycero-phosphate prevents the hydrolysis of the glycoprotein and at the same time keeps itfrom rotting. Moreover, it in cooperation with calcium hydro-oxide prevents the coagulation of glycoproteln during heattreatment, while calcium chloride and. magnesium chloride reduce the viscosity of glycoprotein tion under reduced pressure.

to facilitate its filtration and other treatments and also increase its nutritive value.

The following is an example of performing the present invention:-

Dilute. the root of Dioscorea a'aponica crushed 5 in a pasty form by a crusher, with a mixed solution consisting of 2.2% of calcium chloride, 5.8% of sodium chloride, 6.6% of magnesium chloride, 5.4% of calcium hydroxide and 80% oi water and filter it with a suction filtering machine. Then, dissolve sodium glycero phosphate of the quantity equivalent to 3% of the solid matter in the iiltrate and concentrate the solution by vaporize- Lastly, by pouring tartaric acid solution-into the above while 5 stirring it, it has its alkalinity neutralized.

I clalm:-

1. The process of manufacturing a food which comprises crushing the root of Dioscorea giapo'nica,

"mixing the resulting product with an aqueous solution containing calcium chloride, magnesiiun chloride, and calcium hydroxide, filtering the so- .lutiom adding sodiumglycero-phosphate .to the filtrate, concentrating-this product and neutralizing it with tartaric acid. v 5 2. The process 01 preparing nourishment which 2 comprises crushing the root at Dioscorea japmiicq. to a pasty form, adding an aqueous solution of calcium and magnesium chlorides thereto to reduce its viscosity, adding calcium hydroxide to render it alkaline and prevent its coagulation by heat, filtering the so obtained solution, adding sodium glycero-phosphate as a stabilizing agent,

concentrating the product and adding tartaric acid to the concentrate to neutralize it.

.- SHINJIRO TANAKA. 

